WhatsApp Chatbot

I'll need assistance creating a bot, setting up WhatsApp API to my WhatsApp number. Also will be using automation tools that are self hosted running on a VPC. Most of the work will be done, but I just need final touches, bug fixes, help setup marketing bulk messaging does NOT ban my number and help with the opt-in stuff. If you want to apply: 1. The technology stack you would recommend. 2. Your recommendation for WhatsApp integration and opt-in strategy. 3. Examples of similar chatbot, WhatsApp, CRM, or AI automation projects you have built. 4. Whether you recommend a self-hosted or cloud-based approach and why. I will not engage with freelancers that have 0 projects in AI.